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HER257 Datasheet(PDF) 2 Page - Microdiode Electronics (Jiangsu) Co.,Ltd.

Part # HER257
Description  HIGH EFFICIENCY RECTIFIERS
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Manufacturer  CHENDA [Microdiode Electronics (Jiangsu) Co.,Ltd.]
Direct Link  http://www.microdiode.com/en
Logo CHENDA - Microdiode Electronics (Jiangsu) Co.,Ltd.

HER257 Datasheet(HTML) 2 Page - Microdiode Electronics (Jiangsu) Co.,Ltd.

  HER257 Datasheet HTML 1Page - Microdiode Electronics (Jiangsu) Co.,Ltd. HER257 Datasheet HTML 2Page - Microdiode Electronics (Jiangsu) Co.,Ltd.  
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RATINGS AND CHARACTERISTIC CURVES HER251 THRU HER258
60
50
40
30
20
10
0.2
0.6
1.0
1.4
1.8
2.0
0.1
1.0
10
100
0.01
0.1
1
10
100
100
10
1
0.1
REVERSE VOLTAGE,VOLTS
t,PULSE DURATION,sec.
FIG. 5-TYPICAL JUNCTION CAPACITANCE
FIG. 6-TYPICAL TRANSIENT THERMAL IMPEDANCE
FIG. 3-TYPICAL INSTANTANEOUS FORWARD
CHARACTERISTICS
NUMBER OF CYCLES AT 60 Hz
FIG. 2-MAXIMUM NON-REPETITIVE PEAK FORWARD
SURGE CURRENT
FIG. 1- FORWARD CURRENT DERATING CURVE
INSTANTANEOUS FORWARD VOLTAGE,
VOLTS
1
10
100
0.01
0.1
1
20
10
TJ=25 C
1
10
100
200
0
20
40
60
80
100
1,000
100
10
1
0.1
0.01
TJ=100 C
TJ=25 C
PERCENT OF PEAK REVERSE VOLTAGE,%
FIG. 4-TYPICAL REVERSE CHARACTERISTICS
AMBIENT TEMPERATURE, C
TJ=25 C
PULSE WIDTH=300
µs
1%DUTY CYCLE
8.3ms SINGLE HALF SINE-WAVE
(JEDEC Method)
HER251-HER253
HER254-HER255
HER256-HER258
HER251-HER255
HER256-HER258
Single Phase Half Wave 60HZ
100
125
150
75
0
3
25
50
2.0
1
200
0
175
Resistive or Inductive Load
The cruve graph is for reference only, can't be the basis for judgment(曲线图仅供参考)!


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